Home / 135,663.40-203,495.10-115,618.60

Finding the Fourth Proportional to 135,663.40, 203,495.10 and 115,618.60

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Solution

The fourth proportional to 135,663.40, 203,495.10 and 115,618.60 is: 173,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,663.40 : 203,495.10 = 115,618.60 : x
  2. Step 2: Convert to fraction form
    135,663.40/203,495.10 = 115,618.60/x
  3. Step 3: Cross multiply
    135,663.40x = 203,495.10 × 115,618.60
  4. Step 4: Simplify right side
    135,663.40x = 23,527,818,568.86
  5. Step 5: Solve for x
    x = 23,527,818,568.86/135,663.40
  6. Step 6: Final answer
    x = 173,427.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.